Joseph Mamrout
(Joe Mamrout)
Chief Operating Officer
Sentry Realty
(American Exchange Group)
Owner
1400 Broadway 18th floor New York, NY 10018
Sentry Realty NYC portfolio
$1.1 billion -office 66%, elevator 33%; Manhattan 99%*
256th largest portfolio by dollar value
1,934,220 sqft – office 74%, elevator 25%; Manhattan 100%
287th largest by SF
6 properties – Manhattan 100%
1746th largest
573 residential units – Manhattan 100%
602th largest by residential units
1 foreclosure, 0 bankruptcies, 0 other court cases.
Person Activity past 24 months:
Buyer signatory: 4 for $603.9 million
Borrower signatory: 9 for $1.1 billion
Developer (new building or major alteration): 3 for 46,756 square feet
Top Ten Associated Companies:
Fortress Investment Group (4), Sail Harbor Capital (2), Deutsche Bank (2), Baupost Group (1), Vanbarton Group (1), Savanna (1), Invesco (1), Bain Capital (1), L.H. Charney Associates (1)
Top Ten Associated People:
Andrew Mullin (1), Thomas C. Vasile (1), Damiano Buffa (1), Nicholas Bienstock (1), Jaime Kelley (1), Michael Boyle (1), Brandon Atkins (1), Darrell L. Gustafson (1), Warren R. Gleicher (1)
Recent activity as signatory:
• Sentry Realty and 60 Guilders borrowed $238.5 million from Fortress Investment Group for 577 7 Avenue on July 27, 2026.
• L.H. Charney Associates sold 577 7 Avenue for $238.2 million to Sentry Realty and 60 Guilders on July 27, 2026.
• Sentry Realty and 60 Guilders borrowed $11 million from Fortress Investment Group for 1370 Broadway on June 11, 2026.
• Sentry Realty borrowed $165 million from Bain Capital for 1383 Broadway on January 23, 2026.
• Sentry Realty borrowed $280 million from Deutsche Bank for 138 John Street on July 29, 2025.
• Sentry Realty and 60 Guilders borrowed $45.5 million from Fortress Investment Group for 1370 Broadway on January 16, 2025.
• Sentry Realty and 60 Guilders borrowed $72 million from Fortress Investment Group for 1370 Broadway on January 16, 2025.
• Invesco sold 1370 Broadway for $75.2 million to Sentry Realty and 60 Guilders on January 16, 2025.
• Sentry Realty and 60 Guilders borrowed $165 million from Sail Harbor Capital and Baupost Group for 1383 Broadway on December 19, 2024.
• Savanna sold 1383 Broadway for $200 million to Sentry Realty and 60 Guilders on December 19, 2024.
Latest Stories:
• $265M pre-foreclosure filed at Metro Loft’s FiDi rental (April 03, 2025)
• Sentry Realty, 60 Guilders pay $75.2M to Invesco for office in Garment District (January 23, 2025)
• Alen Mamrout, 60 Guilders, acquire 1375 Broadway in $200M deal (January 01, 2025)
• Sentry Realty refis debt on 1375 Broadway, after buying $200M note in August (December 27, 2024)
• L.H. Charney signs $241M refi with Deutsche Bank for 10 Times Square (September 14, 2021)
• Savanna pays $435M to Westbrook Partners for property in Garment District (July 17, 2020)